switch to setup for Arduino Boards Manager

2025-09-18 01:42:26 -07:00 · 2015-06-23 12:42:35 -07:00
parent bc55c9bb45
commit 6ca6b114d5
3581 changed files with 93 additions and 51 deletions
--- a/digistump-avr/cores/tiny/wiring_digital.c
+++ b/digistump-avr/cores/tiny/wiring_digital.c
@@ -0,0 +1,148 @@
+/*
+  wiring_digital.c - digital input and output functions
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
+
+  Modified 28-08-2009 for attiny84 R.Wiersma
+  Modified 14-10-2009 for attiny45 Saposoft
+*/
+
+#include "wiring_private.h"
+#include "pins_arduino.h"
+#include "core_pins.h"
+#include "core_timers.h"
+#include "PwmTimer.h"
+
+void pinMode(uint8_t pin, uint8_t mode)
+{
+	uint8_t bit = digitalPinToBitMask(pin);
+	uint8_t port = digitalPinToPort(pin);
+	volatile uint8_t *reg;
+
+	if (port == NOT_A_PIN) return;
+
+	// JWS: can I let the optimizer do this?
+	reg = portModeRegister(port);
+
+	if (mode == INPUT) { 
+		uint8_t oldSREG = SREG;
+    cli();
+		*reg &= ~bit;
+		SREG = oldSREG;
+	} else {
+		uint8_t oldSREG = SREG;
+    cli();
+		*reg |= bit;
+		SREG = oldSREG;
+	}
+}
+
+// Forcing this inline keeps the callers from having to push their own stuff
+// on the stack. It is a good performance win and only takes 1 more byte per
+// user than calling. (It will take more bytes on the 168.)
+//
+// But shouldn't this be moved into pinMode? Seems silly to check and do on
+// each digitalread or write.
+//
+__attribute__((always_inline)) static inline void turnOffPWM( uint8_t pin )
+{
+  #if CORE_PWM_COUNT >= 1
+    if ( pin == CORE_PWM0_PIN )
+    {
+      Pwm0_SetCompareOutputMode( Pwm0_Disconnected );
+    }
+    else
+  #endif
+
+  #if CORE_PWM_COUNT >= 2
+    if ( pin == CORE_PWM1_PIN )
+    {
+      Pwm1_SetCompareOutputMode( Pwm1_Disconnected );
+    }
+    else
+  #endif
+
+  #if CORE_PWM_COUNT >= 3
+    if ( pin == CORE_PWM2_PIN )
+    {
+      Pwm2_SetCompareOutputMode( Pwm2_Disconnected );
+    }
+    else
+  #endif
+
+  #if CORE_PWM_COUNT >= 4
+    if ( pin == CORE_PWM3_PIN )
+    {
+      Pwm3_SetCompareOutputMode( Pwm3_Disconnected );
+    }
+    else
+  #endif
+
+  #if CORE_PWM_COUNT >= 5
+  #error Only 4 PWM pins are supported.  Add more conditions.
+  #endif
+
+    {
+    }
+
+}
+
+void digitalWrite(uint8_t pin, uint8_t val)
+{
+	uint8_t bit = digitalPinToBitMask(pin);
+	uint8_t port = digitalPinToPort(pin);
+	volatile uint8_t *out;
+
+	if (port == NOT_A_PIN) return;
+
+	// If the pin that support PWM output, we need to turn it off
+	// before doing a digital write.
+  turnOffPWM( pin );
+
+	out = portOutputRegister(port);
+
+	if (val == LOW) {
+		uint8_t oldSREG = SREG;
+    cli();
+		*out &= ~bit;
+		SREG = oldSREG;
+	} else {
+		uint8_t oldSREG = SREG;
+    cli();
+		*out |= bit;
+		SREG = oldSREG;
+	}
+}
+
+int digitalRead(uint8_t pin)
+{
+	uint8_t bit = digitalPinToBitMask(pin);
+	uint8_t port = digitalPinToPort(pin);
+
+	if (port == NOT_A_PIN) return LOW;
+
+	// If the pin that support PWM output, we need to turn it off
+	// before getting a digital reading.
+  turnOffPWM( pin );
+
+	if (*portInputRegister(port) & bit) return HIGH;
+	return LOW;
+}